1 #ifndef ALIITSCLUSTERTABLE_H
2 #define ALIITSCLUSTERTABLE_H
3 /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5 //////////////////////////////////////////////////////////////////////////
6 // Class used to simplify some operations with clusters. //
7 // -Function FillArray fills an array wich contains, for each //
8 // ITS module, an array with the indices of all the clusters detected //
9 // by the module. The indices correspond to the cluster indices in class//
10 // AliITSlayer of AliITStrackerV2. //
11 // This function is used in AliITStrackerSA::FindTracks. //
12 // -Function FillArrayLabel fills an array wich contains, for each //
13 // particle label, and for each layer, the information on clusters: //
14 // 0 if there is no cluster, 1 if there is a cluster with this label. //
15 // This function is used to define trackable tracks. //
16 ///////////////////////////////////////////////////////////////////////////
24 class AliITStrackerSA;
26 class AliITSclusterV2;
28 class AliITSclusterTable : public TObject {
34 AliITSclusterTable(AliITSgeom* geom, AliITStrackerSA* tracker, Double_t* primaryVertex);
35 void FillArray(TTree* clusterTree);
36 void FillArrayLabel(Int_t numberofparticles);
37 void FillArrayCoorAngles();
38 void GetCoorAngles(AliITSclusterV2* cl,Int_t module,Double_t &phi,Double_t &lambda,Double_t &x,Double_t &y,Double_t &z);
39 void GetCoorErrors(AliITSclusterV2* cl, Int_t module,Double_t &sx,Double_t &sy, Double_t &sz);
40 virtual ~AliITSclusterTable();
43 Int_t GetNCluster(Int_t mod) const {return fNCl[mod];}
44 Int_t GetClusterIndMod(Int_t mod,Int_t i){return fDet[mod]->At(i);}
45 Int_t ThereIsClusterOnLayer(Int_t label,Int_t layer)
46 {return fLbl[label]->At(layer);}
47 Int_t ThisParticleIsTrackable(Int_t label,Int_t numberofpoints=6);
48 Double_t GetPhiCluster(Int_t layer, Int_t i){return fPhiList[layer]->At(i);}
49 Double_t GetLambdaCluster(Int_t layer, Int_t i) {return fLambdaList[layer]->At(i);}
50 Double_t GetXCluster(Int_t layer, Int_t i){return fXList[layer]->At(i);}
51 Double_t GetYCluster(Int_t layer, Int_t i) {return fYList[layer]->At(i);}
52 Double_t GetZCluster(Int_t layer, Int_t i) {return fZList[layer]->At(i);}
53 Double_t GetXClusterError(Int_t layer, Int_t i) {return fSxList[layer]->At(i);}
54 Double_t GetYClusterError(Int_t layer, Int_t i) {return fSyList[layer]->At(i);}
55 Double_t GetZClusterError(Int_t layer, Int_t i) {return fSzList[layer]->At(i);}
57 TArrayI* GetListOfClusters(Int_t mod) const {return fDet[mod];}
58 TArrayI* GetNClustersSameLabel(Int_t label) const {return fLbl[label];}
59 TArrayD* GetListOfPhi(Int_t layer) const {return fPhiList[layer];}
60 TArrayD* GetListOfLambda(Int_t layer) const {return fLambdaList[layer];}
61 TArrayD* GetListOfX(Int_t layer) const {return fXList[layer];}
62 TArrayD* GetListOfY(Int_t layer) const {return fYList[layer];}
63 TArrayD* GetListOfZ(Int_t layer) const {return fZList[layer];}
64 TArrayD* GetListOfSx(Int_t layer)const {return fSxList[layer];}
65 TArrayD* GetListOfSy(Int_t layer)const {return fSyList[layer];}
66 TArrayD* GetListOfSz(Int_t layer)const {return fSzList[layer];}
69 // copy constructor (NO copy allowed: the constructor is protected
71 AliITSclusterTable(const AliITSclusterTable& tab);
72 // assignment operator (NO assignment allowed)
73 AliITSclusterTable& operator=(const AliITSclusterTable& /* tab */);
75 static Int_t FindIndex(Int_t ndim, Int_t *ptr, Int_t value);
77 Int_t *fNCl; //number of clusters per module
78 Double_t fPrimaryVertex[3]; //primaryVertex
79 TArrayI** fDet; //Array of cluster indices for each detector
80 TArrayI** fLbl; //Array of number of clusters (on each layer)
81 // with the same label for each label.
82 TArrayD** fPhiList; //Array of cluster azimuthal angles on each layer
83 TArrayD** fLambdaList;//Array of cluster Lambda angles on each layer
84 TArrayD** fXList; //Array of cluster x coordinates on each layer
85 TArrayD** fYList; //Array of cluster y coordinates on each layer
86 TArrayD** fZList; // Array of cluster z coordinates on each layer
87 TArrayD** fSxList; //Array of cluster errors on x on each layer
88 TArrayD** fSyList; //Array of cluster errors on y on each layer
89 TArrayD** fSzList; //Array of cluster errors on z on each layer
91 AliITSgeom *fGeom; //! ITS geometry
92 AliITStrackerSA *fTracker; //! SA tracker
94 ClassDef(AliITSclusterTable,1)